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United States Patent | 5,726,423 |
Westerberg ,   et al. | March 10, 1998 |
An oven for cooking with light having wavelengths in the visible, near visible, and infra-red spectral ranges cooks food items for periods that are predetermined for given food items. When prolonged use of the oven increases the oven temperature, a thermistor detects the temperature increases and delivers a signal representing the increase to a microprocessor. The microprocessor is programmed to compensate for increases in the oven temperature by lowering the cooking time for a given food item below the predetermined period. Some of the heated air that accumulates in the oven is withdrawn by an evacuation device.
Inventors: | Westerberg; Eugene R. (Palo Alto, CA); O'Neal; John W. (Burlingame, CA) |
Assignee: | Quadlux, Inc. (Fremont, CA) |
Appl. No.: | 756458 |
Filed: | November 26, 1996 |
Current U.S. Class: | 219/411; 99/331; 219/413; 426/248; 426/523 |
Intern'l Class: | H05B 003/68; A21B 002/00 |
Field of Search: | 219/405,411,412,413,414,391,399,400,494 392/416,418 99/328,333,331,451,467,483 426/523,241,242,243,248 364/557 |
2549619 | Apr., 1951 | Miskella | 219/411. |
2864932 | Dec., 1958 | Forrer | 219/35. |
3037443 | Jun., 1962 | Newkirk et al. | 99/332. |
3304406 | Feb., 1967 | King | 219/411. |
3313917 | Apr., 1967 | Ditzler et al. | 219/400. |
3326692 | Jun., 1967 | Martino et al. | 99/328. |
3448678 | Jun., 1969 | Burstein | 99/386. |
3569656 | Mar., 1971 | White et al. | 219/10. |
3828163 | Aug., 1974 | Amagami et al. | 219/413. |
4244284 | Jan., 1981 | Flavan, Jr. et al. | 99/331. |
4360726 | Nov., 1982 | Haden | 219/494. |
4410779 | Oct., 1983 | Weiss | 219/10. |
4421974 | Dec., 1983 | Oota et al. | 219/492. |
4463238 | Jul., 1984 | Tanabe | 219/10. |
4481405 | Nov., 1984 | Malick | 219/405. |
4483631 | Nov., 1984 | Kydd | 364/557. |
4486639 | Dec., 1984 | Mittelsteadt | 219/10. |
4516486 | May., 1985 | Burkhart | 99/388. |
4554437 | Nov., 1985 | Wagner et al. | 219/388. |
4575616 | Mar., 1986 | Bergendal | 219/405. |
4601004 | Jul., 1986 | Holt et al. | 99/328. |
4687895 | Aug., 1987 | Chitre et al. | 219/10. |
4700051 | Oct., 1987 | Goessler et al. | 219/464. |
4731251 | Mar., 1988 | Jovanovic | 426/243. |
4761529 | Aug., 1988 | Tsisios | 219/10. |
5034235 | Jul., 1991 | Dunn et al. | 426/248. |
5171974 | Dec., 1992 | Koether et al. | 219/506. |
5179265 | Jan., 1993 | Sheridan et al. | 99/328. |
5308161 | May., 1994 | Stein | 392/416. |
5315092 | May., 1994 | Takahashi et al. | 392/418. |
5317130 | May., 1994 | Burkett et al. | 219/492. |
5319171 | Jun., 1994 | Tazawa | 219/705. |
5352865 | Oct., 1994 | Burkett et al. | 219/492. |
5378872 | Jan., 1995 | Jovanovic | 219/405. |
5382441 | Jan., 1995 | Lentz et al. | 436/411. |
5478986 | Dec., 1995 | Westerberg | 219/411. |
5517005 | May., 1996 | Westerberg et al. | 219/405. |
Foreign Patent Documents | |||
23724 | Feb., 1981 | EP. | |
0215617 | Sep., 1986 | EP | . |
25 46 106 | Apr., 1977 | DE | . |
3503648 | Apr., 1986 | DE. | |
57-60007 | Apr., 1982 | JP. | |
57-70323 | Apr., 1982 | JP. | |
59-47302 | Mar., 1984 | JP | 219/405. |
60-69920 | May., 1985 | JP. | |
60-167932 | Nov., 1985 | JP. | |
60-245933 | Dec., 1985 | JP. | |
63-46720 | Mar., 1988 | JP. | |
63-34913 | Mar., 1988 | JP. | |
1-315982 | Dec., 1989 | JP. | |
4-361714 | Dec., 1992 | JP. | |
1273023 | May., 1972 | GB. | |
2132060 | Aug., 1983 | GB | . |
2132060 | Jun., 1984 | GB. | |
2152790 | Aug., 1985 | GB. |
Fostoria Corporation, "Heat Processing with Infrared", Feb., 1962, pp. 1-7. Summer, W. Dr., "Ultra-Violet and Infra-Red Engineering", 1962, pp. 102-112. Beggs, E.W., "Quicker Drying with Lamps", Jul., 1939, vol. 97, No. 7, pp. 88-89. Harold McGee, Book, "On Food and Cooking", Charles Schribner's Sons, New York, 1984, Chapter 14, pp. 608-624. |